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WO2018008467A1 - Structure de partie inférieure de cabine - Google Patents

Structure de partie inférieure de cabine Download PDF

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Publication number
WO2018008467A1
WO2018008467A1 PCT/JP2017/023538 JP2017023538W WO2018008467A1 WO 2018008467 A1 WO2018008467 A1 WO 2018008467A1 JP 2017023538 W JP2017023538 W JP 2017023538W WO 2018008467 A1 WO2018008467 A1 WO 2018008467A1
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WO
WIPO (PCT)
Prior art keywords
cab
frame
floor
width direction
panel member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/023538
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English (en)
Japanese (ja)
Inventor
皓平 馬場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to CN201780038016.3A priority Critical patent/CN109415095B/zh
Publication of WO2018008467A1 publication Critical patent/WO2018008467A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs

Definitions

  • This disclosure relates to a bottom structure of a cab of a vehicle.
  • Patent Document 1 describes a cab structure of a cab over type truck.
  • the cab has various panels such as a floor panel constituting a floor surface of the passenger compartment and a back panel defining a rear portion of the passenger compartment.
  • a plurality of floor frames extending substantially in the front-rear direction of the cab are disposed below the floor panel, and these floor frames are fixed to the lower surface of the floor panel.
  • a rear cross member extending in the width direction of the cab is provided at the rear end portion of the floor frame.
  • the rear cross member is fixed to the lower surface of the floor panel by spot welding and supported by the chassis frame via an intermediate member (not shown).
  • the rear portion of the floor panel protrudes upward from each seat support surface, and each seat support surface is connected to the protruding rear portion via a floor panel inclined portion whose height gradually increases toward the rear.
  • a truck cab may have a wide space behind a seat (seat seat), such as a long-distance truck cab, and a bed or the like may be mounted in the space.
  • a seat seat
  • the floor panel behind the seating seat is secured longer in the front-rear direction, so it may be difficult to secure the rigidity of the floor panel accordingly.
  • an object of the present disclosure is to provide a bottom structure of a cab that can ensure the rigidity of the floor panel even if a wide space is provided behind the seating seat.
  • the present disclosure is a cab bottom surface structure having a predetermined space behind a seating seat in a vehicle interior, and includes a mounting rail, a floor panel, and a pair of left and right underframes.
  • the mount rail has a pair of left and right supported parts supported from below by the body frame, and extends linearly in the vehicle width direction at the lower portion of the rear end of the cab.
  • the floor panel extends linearly in the vehicle width direction across the rear of the floor continuously extending forward from the mount rail below the predetermined space and from the front edge of the rear of the floor to the left and right of the rear of the floor.
  • the left and right underframes have frame rear portions that extend linearly between the left and right supported portions of the mounting rail and the front edge of the rear portion of the floor, and support the rear portion of the floor from below. Then, it extends in the front-rear direction along the lower surface of the floor panel and is fixed to the floor panel.
  • the mounting rail extends linearly in the vehicle width direction at the lower rear end of the cab, and the projecting portion that forms a closed cross section with the rear of the floor is linear in the vehicle width direction on the left and right of the rear of the floor.
  • the frame rear portions of the left and right under frames extend linearly between the left and right supported portions of the mount rail and the front end edge portion of the floor rear portion.
  • the rigidity of the rear part of the floor can be secured, and the rigidity of the floor panel is ensured even if the predetermined space behind the seating seat is wide. be able to.
  • left and right underframes may each have a frame front portion that continuously extends forward from the front end of the frame rear portion, and the bending rigidity of the frame rear portion may be larger than the bending rigidity of the frame front portion.
  • the flexural rigidity of the rear part of the frame is larger than the flexural rigidity of the front part of the frame, the rigidity of the rear part of the floor can be improved by the rear part of the frame, and even if the predetermined space behind the seating seat is wide, the floor The rigidity of the panel can be ensured.
  • the length in the height direction of the rear part of the frame may be longer than the length in the height direction of the front part of the frame.
  • the length in the vehicle width direction of the horizontal plate portion at the rear of the frame may be longer than the length in the vehicle width direction of the horizontal plate portion at the front of the frame.
  • the cross-sectional area of the rear part of the frame may be larger than the cross-sectional area of the front part of the frame.
  • the pair of left and right underframes has a pair of left and right frame rear portions, the pair of left and right frame rear portions extend in the front-rear direction, the mounting rail extending in the vehicle width direction, and the protruding portion extending in the vehicle width direction have a predetermined space. May be fixed to each other by crossing the rear portions of the left and right frames.
  • the rigidity of the floor panel can be improved.
  • the rigidity of the floor panel can be ensured even if a wide space is provided behind the seating seat.
  • FIG. 1 is an external perspective view of a front portion of a vehicle to which a cab bottom surface structure according to the present disclosure is applied.
  • FIG. 2 is a schematic cross-sectional view of the cab of FIG.
  • FIG. 3 is a schematic cross-sectional view of the rear portion of the cab.
  • 4 is a schematic bottom view of the cab of the vehicle of FIG.
  • FR indicates the front of the vehicle
  • UP indicates the upper side
  • IN indicates the inner side in the vehicle width direction.
  • the left-right direction means the left-right direction with the vehicle facing forward.
  • the cab bottom surface structure is applied to, for example, a cab-over type truck (vehicle) 1 in which the cab 2 is generally disposed above an engine (not shown).
  • the cab 2 of the truck 1 is formed in a box shape by a cab front surface portion 3, left and right cab side surface portions 4, a cab rear surface portion 5, a cab upper surface portion 6, and a cab bottom surface portion (bottom surface portion) 10.
  • a compartment 7 is defined.
  • the lower portion of the front end of the cab 2 is rotatably supported by the front end portion of the vehicle body frame 37 of the truck 1 via the front cab mount 39.
  • the rear end lower portion of the cab 2 is supported from below by the vehicle body frame 37 via a rear cab mount 38 fixed to the vehicle body frame 37.
  • 2 shows the cab 2 in a state where various devices (steering and the like) in front of the door and the vehicle compartment 7 and a seating seat 13 described later are omitted.
  • a rest space (predetermined space) 14 in which an occupant can rest is provided in an area behind the seating seat 13 of the cab 2, and a bed 33 formed in a substantially rectangular plate shape is installed in the rest space 14. ing.
  • the cab bottom surface portion 10 includes a rear cab mount rail (mount rail) 11 extending in the vehicle width direction at the rear end edge of the cab bottom surface portion 10, and forward from the rear cab mount rail 11.
  • the floor panel 12 extends, and a pair of left and right floor underframes (underframes) 15 fixed to the lower surface 12a of the floor panel 12 are provided.
  • the cab bottom surface portion 10 defines a lower portion of the passenger compartment 7.
  • the rear cab mount rail 11 is formed by bending a metal panel member so as to protrude upward, extends linearly in the vehicle width direction at the lower rear end of the cab 2, and the rear end edge of the cab bottom surface portion 10. To ensure the rigidity.
  • the rear cab mount rail 11 includes a front plate portion 11a, an upper plate portion 11b that bends from the upper end edge of the front plate portion 11a and extends rearward, and a rear plate that bends from the rear end edge of the upper plate portion 11b and extends downward. It is comprised by the part 11c, is formed in the open cross-sectional shape open
  • the lower end edge portion of the cab rear surface portion 5 is fixed to the rear plate portion 11c.
  • a pair of left and right rear cab mount brackets 9 are disposed in a space 8 below the rear cab mount rail 11, and the left and right rear cab mount brackets 9 are arranged on the front plate portion 11 a and the upper plate portion of the rear cab mount rail 11. 11b is fixed.
  • a pair of left and right bracket fixing regions (supported portions) 36 to which the left and right rear cab mount brackets 9 of the rear cab mount rail 11 are fixed are vehicle body frames via the left and right rear cab mount brackets 9 and the rear cab mount 38. 37 is supported from below.
  • the left and right bracket fixing regions 36 are regions within a predetermined range in the vehicle width direction of the rear cab mount rail 11 and are regions in which the supporting force from the vehicle body frame 37 side is relatively stronger than other regions.
  • the rear end edge portion 33b of the bed 33 is placed on the upper surface of the upper plate portion 11b, and the upper plate portion 11b supports the rear end edge portion 33b of the bed 33 from below.
  • the upper plate portion 11 b of the rear cab mount rail 11 and the rear end edge portion 33 b of the bed 33 are slightly separated from each other.
  • the edge portion 33b is placed on the upper plate portion 11b of the rear cab mount rail 11, and the bed 33 and the rear cab mount rail 11 are in contact with each other.
  • the floor panel 12 joins three panel members 16, 17, and 18 including a first panel member 16 on the front side of the cab 2, a second panel member (floor rear portion) 17 on the rear side of the cab, and a third panel member 18. It is composed by doing.
  • the floor panel 12 forms the floor surface of the passenger compartment 7.
  • the first panel member 16 of the floor panel 12 integrally includes a cab front floor plate portion 19, an inclined floor plate portion 20, and a bed support floor plate portion 21.
  • the first panel member 16 extends from the lower portion of the front end of the cab 2 to the rear of the seating seat 13.
  • the front end edge of the first panel member 16 is the front end edge of the floor panel 12.
  • the cab front floor plate portion 19 of the first panel member 16 has a center tunnel 22 at the center in the vehicle width direction extending in the front-rear direction in a state of protruding upward, and front floor plate portions 23 on both the left and right sides of the center tunnel 22.
  • the cab front floor plate portion 19 extends rearward from the lower front end of the cab 2.
  • the cab front floor board portion 19 is formed by the center tunnel 22 and the left and right front floor board portions 23 so that a cross-sectional shape orthogonal to the front-rear direction is substantially a hat shape.
  • a radiator not shown
  • an engine not shown
  • auxiliary equipment not shown
  • the left and right front floor plate portions 23 have support regions 23a for fixing the seating seat 13 from below and supporting the seating seat 13 from below, and are disposed on both left and right sides of the center tunnel 22 so as to extend rearward from the lower front end of the cab 2. Extend.
  • the seating seat 13 has left and right slide rails (not shown) that extend in the front-rear direction at the lower end portion of the seating seat 13 and can slide the seating seat 13 in the front-rear direction.
  • the left and right front floor plate portions 23 of the portion 19 are fixed to the support areas 23a.
  • the seating seat 13 may be directly fixed to the cab front floor plate portion 19 without using the slide rail.
  • the inclined floor board portion 20 of the first panel member 16 is bent at the rear end edges of the left and right front floor board portions 23 and extends rearward and upward to the left and right lower regions 20a (FIG. 2 and FIG. Only the region 20a is shown) and an upper region 20b extending rearward and upward continuously from the upper edge of the lower region 20a and the rear edge of the center tunnel 22.
  • the inclined floor board portion 20 is disposed in the vicinity of the rear of the seating seat 13.
  • An upper region 20 b of the inclined floor plate portion 20 extends in the vehicle width direction across the left and right sides of the cab 2.
  • the upper edge of the upper region 20 b of the inclined floor board 20 is disposed at substantially the same height as the upper edge of the front plate 11 a of the rear cab mount rail 11.
  • the bed support floor plate portion 21 of the first panel member 16 bends from the upper edge of the upper region 20b of the inclined floor plate portion 20 and extends substantially horizontally rearward, and is substantially the same height as the upper plate portion 11b of the rear cab mount rail 11. Placed in position.
  • the front end edge portion 33a of the bed 33 is placed on the upper surface of the bed support floor plate portion 21, and the bed support floor plate portion 21 supports the front end edge portion 33a of the bed 33 from below.
  • the bed support floor plate 21 and the front end edge 33 a of the bed 33 are slightly separated from each other for the sake of clarity, but actually, the front end edge 33 a of the bed 33 is the bed support floor plate.
  • the bed 33 and the bed support floor plate 21 are in contact with each other.
  • the second panel member 17 of the floor panel 12 is disposed behind the seating seat 13, is formed in a substantially rectangular shape that is long in the vehicle width direction, and extends over the left and right sides of the cab 2.
  • the front edge of the second panel member 17 is fixed to the rear surface 24 of the inclined floor plate portion 20 of the first panel member 16, and the rear edge of the second panel member 17 is the lower end of the front plate portion 11 a of the rear cab mount rail 11.
  • the second panel member 17 is disposed above the left and right front floor plate portions 23 of the first panel member 16, and defines a lower portion of the rest space 14 behind the seating seat 13. That is, the second panel member 17 extends continuously from the rear cab mount rail 11 below the rest space 14 to the vicinity of the rear of the front seating seat 13.
  • the third panel member 18 of the floor panel 12 is formed in a substantially rectangular shape elongated in the vehicle width direction, and the rear end edge portion of the bed support floor plate portion 21 of the first panel member 16 and the upper surface of the second panel member 17 And extending along a substantially vertical direction.
  • the upper edge portion of the third panel member 18 is fixed to the rear edge portion of the bed support floor plate portion 21 of the first panel member 16.
  • the lower end edge portion of the third panel member 18 is fixed to a position spaced rearward from the rear surface 24 of the inclined floor plate portion 20 of the first panel member 16 on the upper surface of the second panel member 17.
  • the upper region 20 b of the inclined floor plate portion 20 of the first panel member 16, the bed support floor plate portion 21 of the first panel member 16, and the third panel member 18 are from the upper surface of the front edge 30 of the second panel member 17.
  • the protrusion 25 is spaced forward from the rear cab mount rail 11 in the floor panel 12 and is disposed in the vicinity of the rear of the seating seat 13, and supports the front end edge 33 a of the bed 33 from below.
  • the third panel member 18, the region behind the third panel member 18 in the second panel member 17, and the front plate portion 11 a of the rear cab mount rail 11 define a recessed space 26 that opens upward. .
  • the upper portion of the recessed space 26 is blocked by the bed 33. Further, the upper portion of the recessed space 26 is released in a state where at least one of the front edge portion 33a or the rear edge portion 33b of the bed 33 is moved upward.
  • the left and right floor under frames 15 are formed in a substantially hat-like cross section that opens upward, are arranged on both the left and right sides below the floor panel 12, extend in the front-rear direction, and support the floor panel 12 from below.
  • the left and right floor underframes 15 are substantially horizontally extending from the front end of the floor panel 12 to the rear of the seating seat 13 and from the rear end of the frame front 34 to the rear end of the floor panel 12. And a frame rear portion 35 extending.
  • the left and right floor under frames 15 are fixed to the floor panel 12 by welding or the like in a state where the left and right floor under frames 15 are in contact with the lower surface of the floor panel 12.
  • the frame front portions 34 of the left and right floor underframes 15 are moved rearward along the lower surfaces of the left and right front floor plate portions 23 of the first panel member 16 and the left and right lower regions 20 a of the first panel member 16 from the front end portion of the floor panel 12. It extends to the rear end (upper end) of the lower region 20a, and supports the first panel member 16 from below. That is, the rear end portion of the frame front portion 34 is inclined along the lower surfaces of the left and right lower regions 20 a of the inclined floor plate portion 20 of the first panel member 16. A front end portion of the frame front portion 34 is rotatably supported by the vehicle body frame 37 via a front cab mount 39.
  • the rear end 29 of the frame front portion 34 is disposed on the outer side in the vehicle width direction with respect to the rear cab mount bracket 9 on the same side in the vehicle width direction. That is, the distance between the rear ends of the left and right frame front portions 34 is longer than the distance between the left and right rear cab mount brackets 9.
  • the frame front portion 34 has a pair of left and right vertical plate portions 27 and a horizontal plate portion 28, and the lower surface of the inner edge portion in the vehicle width direction of the left and right front floor plate portions 23 of the first panel member 16, and the inclination
  • the floor plate portion 20 is fixed to the lower surface of the inner edge portion in the vehicle width direction of the left and right lower regions 20a.
  • the frame front portion 34 forms a closed cross section with the first panel member 16.
  • the left and right vertical plate portions 27 are spaced apart from each other in the vehicle width direction, are fixed to the lower surface of the first panel member 16 and extend downward.
  • the horizontal plate portion 28 connects lower end edges of the left and right vertical plate portions 27.
  • a length L1 of the frame front portion 34 in a direction orthogonal to the floor panel 12 (hereinafter referred to as a height direction) is set to a predetermined length across the front and rear of the frame front portion 34.
  • the length L2 in the vehicle width direction of the horizontal plate portion 28 is the distance between the upper edge portions of the left and right vertical plate portions 27 fixed to the first panel member 16 over the front and rear of the frame front portion 34. It is set to approximately the same length.
  • a cross-sectional shape between the frame front portion 34 and the first panel member 16 is a substantially rectangular shape (rectangular shape).
  • the frame rear portions 35 of the left and right floor underframes 15 have a pair of left and right vertical plate portions 31 and horizontal plate portions 32, respectively.
  • the left and right frame rear portions 35 are formed of a plate having substantially the same thickness as the frame front portion 34 and are fixed to the lower surface of the second panel member 17 to support the second panel member 17 from below.
  • the left and right frame rear portions 35 are continuously shortened from the rear end 29 of the frame front portion 34 toward the lower side of the left and right bracket fixing regions 36 of the rear cab mount rail 11 so that the distance from each other gradually decreases toward the rear. And extend in directions close to each other.
  • the front end portion 35 a of the frame rear portion 35 is fixed to the protruding portion 25 via the front end edge portion 30 of the second panel member 17 by being fixed to the lower surface of the front end edge portion 30 of the second panel member 17.
  • the rear end portion 35 b of the frame rear portion 35 is fixed to the left and right bracket fixing regions 36 of the rear cab mount rail 11 via the rear cab mount bracket 9 by being fixed to the rear cab mount bracket 9.
  • the frame rear portion 35 extends linearly between the front end edge portion 30 of the second panel member 17 and the left and right bracket fixing regions 36 of the rear cab mount rail 11.
  • the frame rear portion 35 forms a closed cross section with the second panel member 17 that is larger than the closed cross section formed between the frame front portion 34 and the first panel member 16.
  • the frame rear portion 35 extends rearward from the rear end 29 of the frame front portion 34 in the vehicle width direction and the vertical direction.
  • the left and right vertical plate portions 31 are fixed to the lower surface of the second panel member 17 while being spaced apart from each other in the vehicle width direction, and are continuous from the rear ends of the left and right vertical plate portions 29 of the frame front portion 34. Extend backward.
  • the distance L5 between the upper edge portions of the left and right vertical plate portions 31 fixed to the second panel member 17 is the left and right vertical plate portions 29 of the frame front portion 34 fixed to the first panel member 16. It is longer than the separation distance between the upper end edges.
  • the left and right vertical plate portions 31 extend downward from the lower surface of the second panel member 17 toward each other.
  • the horizontal plate portion 32 continuously extends rearward from the rear end of the horizontal plate portion 28 of the frame front portion 34, and connects the lower end edges of the left and right vertical plate portions 31.
  • the cross-sectional shape between the frame rear portion 35 and the second panel member 17 is a trapezoid whose upper base length (L5) is longer than the lower base length (L4).
  • the frame rear portion 35 is formed in a shape in which the cross-sectional secondary moment is larger than that of the frame front portion 34, and the bending rigidity of the frame rear portion 35 (the bending rigidity along the longitudinal direction when a load in the vertical direction is applied: Is simply set to be larger than the bending rigidity of the frame front portion 34.
  • the length L3 in the height direction of the frame rear portion 35 is set to be longer than the length L1 in the height direction of the frame front portion 34 over the front and rear of the frame rear portion 35.
  • the length L4 in the vehicle width direction of the plate portion 32 is set to be longer than the length L2 in the vehicle width direction of the horizontal plate portion 28 of the frame front portion 34 over the front and rear of the frame rear portion 35.
  • the area is set larger than the cross-sectional area of the frame front portion 34.
  • the size of the outer shape of the frame rear portion 35 with respect to the frame front portion 34 is not limited to the above, and for example, the horizontal plate portion of the frame rear portion 35
  • the length L4 in the vehicle width direction of 32 is set to be substantially the same as the length L2 in the vehicle width direction of the horizontal plate portion 28 of the frame front portion 34, and only the length L3 in the height direction of the frame rear portion 35 is set. May be set longer than the length L1 of the frame front portion 34 in the height direction.
  • the rear cab mount rail 11 and the protrusion 25 of the floor panel 12 are separated from each other in the front-rear direction and extend substantially linearly in the vehicle width direction.
  • the frame rear portions 35 of the left and right floor under frames 15 extend linearly between the front end edge portion 30 of the second panel member 17 and the left and right bracket fixing regions 36 of the rear cab mount rail 11.
  • the rear cab mount rail 11, the projecting portion 25 of the floor panel 12, and the frame rear portions 35 of the left and right floor under frames 15 are formed below the rest space 14 (see FIG. 2) so as to form a trapezoid when viewed from the bottom. They are crossed like a cross and fixed to each other. In the present disclosure, crossing in a cross-beam shape is not limited to crossing in a rhombus shape or crossing in a square shape at right angles to each other, and includes the case of crossing in a trapezoidal shape as described above. ing.
  • the rear cab mount rail 11 and the protruding portion 25 of the floor panel 12 extend in the vehicle width direction, so the second panel member 17 with respect to the load from the vehicle width direction. Can be ensured by the rear cab mount rail 11 and the protrusion 25 of the floor panel 12. Further, since the rear cab mount rail 11 and the protrusion 25 of the floor panel 12 extend linearly, unlike the case where the rear cab mount rail 11 and the protrusion 25 of the floor panel 12 have a bent portion, the vehicle width direction It is possible to suppress stress concentration at a predetermined location (for example, the bent portion) when a load from the input is input.
  • the frame rear portions 35 of the left and right floor underframes 15 extend in the front-rear direction between the front end edge portion 30 of the second panel member 17 and the left and right bracket fixing regions 36 of the rear cab mount rail 11, The rigidity of the second panel member 17 with respect to the load can be ensured by the frame rear portions 35 of the left and right floor under frames 15. Further, since the frame rear portions 35 of the left and right floor under frames 15 extend linearly, unlike the case where the frame rear portions 35 of the left and right floor under frames 15 have bent portions, when a load from the front and rear direction is input. Stress concentration at a predetermined location (for example, the bent portion) can be suppressed.
  • Each of the rear cab mount rail 11, the projecting portion 25 of the floor panel 12, and the frame rear portions 35 of the left and right floor underframes 15 cross each other in a cross-beam shape below the rest space 14 behind the seating seat 13. Since they are fixed, the rear cab mount rail 11, the protruding portion 25 of the floor panel 12, and the frame rear portions 35 of the left and right floor under frames 15 are mutually reinforced, and the respective rigidity is increased. For this reason, the rigidity of the second panel member 17 can be sufficiently secured, and the rigidity of the floor panel 12 can be sufficiently secured even if the rest space 14 behind the seating seat 13 is wide in the front-rear direction.
  • the bending rigidity of the frame rear part 35 is larger than the bending rigidity of the frame front part 34.
  • the rigidity of the second panel member 17 is increased as compared with the case where the frame rear portion 35 having the same bending rigidity as the frame front portion 34 is provided, for example. Even if the rest space 14 behind the seating seat 13 is wide in the front-rear direction, the rigidity of the floor panel 12 can be sufficiently secured.
  • the floor panel 12 is configured by joining the three panel members 16, 17, 18 of the first panel member 16, the second panel member 17, and the third panel member 18.
  • the number of panel members constituting the panel 12 is not limited to this.
  • the joint location between the three panel members 16, 17, and 18 is not limited to the above. That is, in this embodiment, although the 2nd panel member 17 was made into the floor rear part, it is not limited to this, A floor rear part continues from the rear cab mount rail 11 below the rest space 14 among the floor panels 12. And what is necessary is just a part extended ahead.
  • the protrusion part 25 which protrudes upwards from the front-end edge part 30 of the 2nd panel member (floor rear part) 17 is made into the upper area
  • region 20b of the inclined floor board part 20 of the 1st panel member 16, and a 1st panel is made into the upper area
  • region 20b of the inclined floor board part 20 of the 1st panel member 16, and a 1st panel Although it comprised with the bed support floor board part 21 of the member 16, and the 3rd panel member 18, it is not limited to this, If it is a protrusion part which protrudes upwards from the front-end edge part of a floor rear part, another structure It may be.
  • the rest space 14 is provided behind the seating seat 13 of the cab 2.
  • the present invention is not limited to this.
  • a predetermined space behind the seating seat 13 is used for storing luggage or the like. It may be a space or the like.
  • the shape of the frame rear portion 35 of the floor under frame 15 is not limited to the above.
  • the cross-sectional shape between the frame rear portion 35 and the second panel member 17 is not limited to a trapezoidal shape in which the length of the upper base (L5) is longer than the length of the lower base (L4).
  • the cross-sectional shape between the first panel member 16 and the first panel member 16 it may be substantially rectangular.
  • the cross-sectional secondary moment of the frame rear portion 35 is made larger than that of the frame front portion 34, and the bending rigidity of the frame rear portion 35 is made larger than the bending rigidity of the frame front portion 34. It is not something.
  • the bending rigidity of the frame rear part 35 may be made larger than the bending rigidity of the frame front part 34 by providing the frame rear part 35 made of a material having a Young's modulus larger than that of the frame front part 34.
  • this indication was demonstrated based on the said embodiment, this indication is not limited to the content of the said embodiment, Of course, it can change suitably in the range which does not deviate from this indication. That is, it is needless to say that other embodiments, examples, operational techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present disclosure.
  • the cab bottom surface structure according to the present disclosure is applied to the cab-over type truck 1, but is not limited thereto, and is applied to, for example, a cab such as a tractor that pulls a trailer. May be.
  • the present invention has an effect of providing a bottom structure of a cab that can ensure the rigidity of a floor panel even if a wide space is provided behind a seating seat, and is useful for a bottom structure of a cab of a vehicle. It is.
  • Truck (vehicle) 2 Cab 7: Cab 10: Cab bottom (bottom) 11: Rear cab mount rail (mount rail) 12: Floor panel 13: Seating seat 14: Rest space (predetermined space) 15: A pair of left and right floor underframes (underframes) 17: Second panel member (floor rear) 25: Projection 30: Front edge of the second panel member (front edge of the rear part of the floor) 34: Frame front part 35: Frame rear part 36: A pair of left and right bracket fixing regions (supported parts) 37: Body frame

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Selon l'invention, un rail de montage de cabine arrière (11) comprend une zone de fixation de support gauche et droite (36) et s'étend de façon linéaire dans le sens de la largeur du véhicule au niveau de la partie inférieure de l'extrémité arrière d'une cabine (2). La zone supérieure (20b) d'une partie plaque de plancher inclinée (20) d'un premier élément de panneau (16) d'un panneau de plancher (12), une unité plaque de plancher de support de lit (21) et un troisième élément de panneau (18) représentent une partie saillante (25) faisant saillie vers le haut à partir de la surface supérieure de la partie bord avant (30) d'un deuxième élément de panneau (17) et s'étendant de façon linéaire dans le sens de la largeur du véhicule, sur la gauche et la droite du deuxième élément de panneau (17). Des parties arrière de cadre (35) d'un sous-châssis de plancher (15) s'étendent de façon linéaire entre le bord avant (30) du deuxième élément de panneau (17) et les zones de fixation de support (36) du rail de montage de cabine arrière (11). Le rail de montage de cabine arrière (11), la partie saillante (25) du panneau de plancher (12) et les parties arrière de cadre gauche et droite (35) sont fixés en dessous d'un espace de repos (14), de sorte à se croiser à la façon d'une grille.
PCT/JP2017/023538 2016-07-07 2017-06-27 Structure de partie inférieure de cabine Ceased WO2018008467A1 (fr)

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CN201780038016.3A CN109415095B (zh) 2016-07-07 2017-06-27 驾驶室的底面部构造

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JP2016135359A JP6694593B2 (ja) 2016-07-07 2016-07-07 キャブの底面部構造
JP2016-135359 2016-07-07

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JP7182077B2 (ja) * 2019-03-29 2022-12-02 いすゞ自動車株式会社 車両のキャブ後面構造
JP7212865B2 (ja) * 2019-09-27 2023-01-26 いすゞ自動車株式会社 車両のキャブ構造
JP7219421B2 (ja) * 2020-02-05 2023-02-08 いすゞ自動車株式会社 キャブサスペンション支持構造
JP7228134B2 (ja) * 2020-02-25 2023-02-24 いすゞ自動車株式会社 アンダーランプロテクタ構造

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JP2018002092A (ja) 2018-01-11
CN109415095A (zh) 2019-03-01
CN109415095B (zh) 2021-08-10

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